diff --git a/astrbot/core/provider/entities.py b/astrbot/core/provider/entities.py
index c6978e7b..620fefba 100644
--- a/astrbot/core/provider/entities.py
+++ b/astrbot/core/provider/entities.py
@@ -184,7 +184,7 @@ class ProviderRequest:
                     logger.warning(f"图片 {image_url} 得到的结果为空，将忽略。")
                     continue
                 user_content["content"].append(
-                    {"type": "image_url", "image_url": {"url": image_data}},
+                    {"type": "image_url", "image_url": image_data},
                 )
             return user_content
         return {"role": "user", "content": self.prompt}